Scenario 2: collect information on commodities

Having read Scenario 1: build an ebook search engine, the following questions may be asked:

  1. How is the first clue determined?
  2. Where is the entrance to crawl the Web for a theme?

This chapter tries to answer above questions where an integrated process to extract data for a set of related themes is stated. The process is spit into multiple phases in any of which data and clues are extracted for a specific theme. The clues extracted in one phase are used in the succeeding phase. In every phase, similar steps are taken to operate MetaSeeker toolkits as stated in scenario 1.